The solution of which of the following equations is neither a fraction nor an integer?

Solve for $x;0.06x+0.09\left(15-x\right)=0.07\left(15\right)$

The ages of the two persons differ by $16$ years. If $6$ years ago, the elder one be $3$ times as old as the younger one, find their present ages.

Payal can cover a certain distance in $1 hr 24 mins$ by covering two-third of the distance at $4 \text{km/hr}$ and the rest at $5 \text{km/hr}$. Find the total distance.

If $\frac{2x}{1+{\displaystyle \frac{1}{1+{\displaystyle \frac{x}{1-x}}}}}=1$, then find the value of $\frac{x+1}{4x-2}$.

Match the following:

Solve for $x$ : $\frac{7x+3}{4}+\frac{9x-5}{8}=\frac{16x-3}{16}$

The sum of two consecutive multiples of $6 \text{is} 114$. Find the smaller number.

Manvi says that she got $16$ more marks than $4$ times the number of marks scored by Aashi. From an equation which gives the marks scored by Aashi, if Manvi scored $72$ marks.